1.4L car diesel injection system Audi A2

General information about the fuel injection system
To avoid injury to people and malfunction of the fuel injection and pre-heating system, it is necessary to take into account that the terminals of the wires of...

Installation locations of injection parts and units (AMF engines)
Installation locations of injection parts and units (aMF engines): Nodes A through I are not shown in the drawing. 1. Air flow meter "G70" 2. Intake manifold...

Installation locations of injection parts and units (BHC and ATL engines)
Installation locations of injection parts and units (bHC and ATL engines): Nodes A through H are not shown in the drawing. 1. EGR valve "N18" and boost...

Fuel injection system relays and sensors
Relay in 3-seater relay board in front left footwell (AMR, VNS) I. Glow plug relay "352". 2. Power supply relay, cl. 30 "3317". Relay in 3-slot relay board in...

Air filter parts and components
Air filter parts and components: 1. Bolt 2. Air filter insert. Always use the original air filter insert 3. Air filter housing. Clean the air filter housing...

Removal and installation the air filter insert
Removal Unscrew bolts "1" and remove the air filter housing cover from the bracket "arrow". Remove the air filter insert. Installation To ensure the air flow...

Removal and installation the air flow meter
Removal Disconnect the plug connector of the air mass meter "G70". Open both hose clamps and carefully remove the air mass meter "G70" from the suction hose....

Suction tube (BHC and AMF engines)
Suction tube (bHC and ATL engines): 1. Gasket. Replacement 2. Nut. 22 Nm 3. Bolt 22 Nm 4. Intake manifold 5. Vacuum receiver for intake manifold flap 6. Bolt 3...

Removal and installation the intake manifold (BHC and AMF engines)
Removal Remove the engine hood. If available, disconnect the bracket, remove the engine cover "arrows". Remove the noise insulation located underneath. Using a...

Suction tube (ATL engines)
Suction tube (aTL engines): 1. Nut. 22 Nm 2. Bolt 20 Nm 3. EGR radiator 4. Mounting clamp for heat shield 5. Heat shield 6. Intake manifold 7. Sealing ring....

Removal and installation the intake manifold (ATL engines)
Removal Remove the sound insulation. Unscrew the nuts "1". Loosen bolts "2 and 3" last. Remove the turbocharger heat shield "arrows". Remove the engine hood....

Parts and units of the pump-injector
Always replace sealing cuffs and rings. Parts and units of the pump-injector: 1. Bolt. 20 Nm + turn 90°. Replacement 2. Rocker arm axle with rocker arm 3. Lock...

Removal and installation of the pump-injector
Removal Remove the cylinder head cover. Rotate the crankshaft until the pair of cams of each of the installed or removed unit injectors are facing evenly...

Removal and installation the sealing rings of the pump-injector
Removal Remove the pump-injector. Very carefully pry and remove the used sealing rings from the pump-injector. Make sure that no burrs appear at the seating...

Removal and installation of wiring harness for pump-injectors and glow plugs
Removal Disconnect the multi-pin plug connector of the pump-injectors and glow plugs by removing the release pin "arrow 1" and loosening the knurled nut "arrow...

Engine Control Unit — Check
Checking wires and components using a diagnostic unit "V.A.G 1598/31" Instructions. To check, use a hand-held multimeter "VAG 1526C" or a multimeter "V.A.G...

Removal and installation the engine control unit
Removal Connect the "VAS 5052" tester and select the engine electronics control unit using the "address" 01. The ignition must be on. The display of the...

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Audi A2(1999-2005)